huntrule

Possible NTLM Logon (via ntlm)

This rule detects logons using NTLM, which could be caused by a legacy source or adversaries

SigmalowWindowsv1
sigma
title: Possible NTLM Logon (via ntlm)
id: f497bee3-1746-54b4-bfb7-18181943377b
status: stable
description: This rule detects logons using NTLM, which could be caused by a legacy source or adversaries
references:
    - https://attack.mitre.org/techniques/T1550/002/
    - https://twitter.com/JohnLaTwC/status/1004895028995477505
author: Huntrule Team
date: 2026-05-19
tags:
    - attack.lateral-movement
    - attack.t1550.002
logsource:
    product: windows
    service: ntlm
    definition: Requires events from Microsoft-Windows-NTLM/Operational
detection:
    selection:
        EventID: 8002
    condition: selection
falsepositives:
    - Unknown
level: low

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.